refactor: remove unused variable

Author: kenjis

system/Router/AutoRouter.php

@@ -124,7 +124,6 @@ public function getRoute(string $uri): array
             $controller .= $controllerName;
 
             $controller = strtolower($controller);
-            $methodName = strtolower($this->methodName());
 
             foreach ($this->protectedControllers as $controllerInRoute) {
                 if (! is_string($controllerInRoute)) {